In the "Ghost Hotel" of shortbread, there is a chapter in which Kim mentions Cain to Peter Pan. Kim recalls that he once stood upside down on the cross like Cain. .

"Because he wants God to wash it away, too. He wants to prove that indifference can be eluted. " If God had been merciful, there might not have been today's blood clan. Although I haven't seen Cain for a long time, he will always remember the way Cain looked at the cross. That is an inverse cross, because the blood clan is not qualified to put the cross, so all the crosses of the blood clan are upside down.

Cain likes to turn into a bat and pray backwards.

Kim learned it once when he was very young. After that, he knew what the cross was like.

Summer's thoughts were taken far away by gold. He thought for a long time alone and suddenly said, "Why do you think Isfield has shed his indifference?"